Check valve or no check valve? Why?

[Fate]

I think the chances of a check valve failing closed is less likely to happen then a power outage and your tank back feeding thru the return and all over your floor.

What's your opinion and why?

 

[ep3n3wp]

Just use a check valve no discussion needed..

Close thread mods...

😂😂😂😂

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[KarL]

check valve or not. I would still make sure sump is able to handle any water from power outage/pump fail.

 

[Zoarder]

check valve or not. I would still make sure sump is able to handle any water from power outage/pump fail.

+1 i use check valve and still make sure it can handle water in case it fails

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[F-Dawg]

DP....

 

[F-Dawg]

check valve or not. I would still make sure sump is able to handle any water from power outage/pump fail.

This.

 

[russ13]

check valve or not. I would still make sure sump is able to handle any water from power outage/pump fail.

yes this is what I always do.

 

[Fate]

So your sump is bigger than your display?

 

[newtothis]

My sump can support the excess water, so I don't use a check valve

 

[keithp]

All fittings reduce flow and check valves are no exception. I didn't install one but hated the drain noise so I have one now. I have enough sump volume but only barely so it is also a little safer too. I chose the "y" shape one because I have had several of the cheaper ones fail on my sprinkler system.

 

[newtothis]

All fittings reduce flow and check valves are no exception. I didn't install one but hated the drain noise so I have one now. I have enough sump volume but only barely so it is also a little safer too. I chose the "y" shape one because I have had several of the cheaper ones fail on my sprinkler system.

How does the check valve cause the drain to be noisy? Check only goes on the return not drain.

 

[Csreef]

+1 i use check valve and still make sure it can handle water in case it fails

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Second that

 

[scr_dayOne]

I don't have a check valve. I do have a valve to stop the water from going down when I do water change. Also add a union there so you can clean the return pump once in a while easily

 

[Jeffreef]

If your return in your DT tank stops siphoning water to where your sump is just full, then no you don't need a check valve. But if your return is still siphoning and your sump is nearly full then no doubt you'll need a check valve.

 

[Emac909]

I never rely on a check valve. For one there are not a 100% full prof and with 300 gallons of salt water sitting in my dinning room I'm not using anything that leaves any chance. I use break the syphon method. By this I mean I allow air to get in the line so that water can't syphon down into the return. I do this by having a 1/4" hole in the return line 1/4" below the waterline. I have the holes in my overflow box so that the water doesn't splash all over the tank. When doing my plumbing I thought before to install break syphon holes. Plus all my plumbing goes up above the waterline then goes back down under the waterline even the returns that are in the overflow box do this. This is the only way a break the syphon method works.

 

[keithp]

How does the check valve cause the drain to be noisy? Check only goes on the return not drain.

Sorry if I wasn't clear. It was the other way around. I had water slurped out of the tank when there was no check valve and my wife came running from another room to see what kind of mess I had made. The check valve makes maintenance and feeding silent.

 

[rayray]

I think the chances of a check valve failing closed is less likely to happen then a power outage and your tank back feeding thru the return and all over your floor.

What's your opinion and why?

I use check valves but they need regular cleaning/replacing too. use clear ones for daily inspection.

complete pump outlet obstruction is the reason I use 2-4 smaller return pumps.

also, I have a 2" drain to sewer at the top of my sump that can empty the whole tank if needed.

 

[Fate]

I don't have a check valve. I do have a valve to stop the water from going down when I do water change. Also add a union there so you can clean the return pump once in a while easily

Thats nice but i'm addressing safety issues in the event of a power outage where you might not be home

 

[russ13]

I don't need a check valve to keep my sump from over flowing. But I shut my main pump off when I am feeding so it's nice that the water doesn't drain a lot during the process.

 

[karm40]

Since they fail, no check valve but, make sure your sump can handle the water when the pump is off, duh...